hey i am having a problem with a power type surge. When the car warms up at low rpms and slowing down the lights on the dash get dim, but when i hit the gas again it get bright. Then go back to normal untill loss of speed again.

Does this sound like a battery or alternator issue or something else? I had both checked out and they seemed to be fine.

 

My guess would be the alternator. You had them tested and they said it was fine?

 

to me it sounds like a alternator problem.

 

I sound like you alternator and battery issue. If they are fine then ......

1) Check your alternator belt. Make sure them tight.

2) Double check all the ground wire.

 

aight thanks i just got a new battery needed it for the stang any way, goin to get the alternator tonight. I redid my grounding kit also it has helped out a lot. Also i thought it was the jdm alternator but it was my old h23 one on there so it has 160k on it might as well get a new one.

 

wow alternators are expensive, got one from autozone for like 145 bucks that is after i return my core for 105......

 

Correct me if I'm wrong, but an alternator has like 3 coils inside. If one goes bad, it will cause those types of problem, even though your car is working and running okay.

If two goes bad, it's not enough to recharge the battery, and your car will die out.

 

lol interesting i didnt know that, good thing i bought a new one coming in on friday.

thanks a lot for the replys verry much appreciated